When reading the tikz/pgf and tcolorbox manuals there are often lines of the form (these are just examples)
/tikz/current point is local=⟨boolean⟩
/tikz/cs/radius=⟨dimension⟩
/pgf/number format/sci zerofill={⟨boolean⟩}
/tcb/titlebox=⟨mode⟩
Although it is clear that /tikz/ and /pgf/ are there to separate commands that are available in tikz and in pgf respectively, it is not completely clear what this notation mean and what significance it has to the end user. For example in tcolorbox a lot of lines seem to start with tcb but not all of them.
I cannot find any explanation of this in either manual. Does anyone know what these lines are and how to interpret them?
Irrelevant comment: I do find both manuals excellent, but one issue with reading them as a beginner is that most of the examples are not particular pure. Instead of just including the command that they want to illustrate they most of the time include a lot more. Often this additional things appear much later in the manual which makes it very hard to read.
